42266749 has 8 divisors (see below), whose sum is σ = 49026368. Its totient is φ = 35687520.

The previous prime is 42266729. The next prime is 42266761. The reversal of 42266749 is 94766224.

42266749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42266749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42266729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44592 + ... + 45529.

It is an arithmetic number, because the mean of its divisors is an integer number (6128296).

Almost surely, 2^42266749 is an apocalyptic number.

It is an amenable number.

42266749 is a deficient number, since it is larger than the sum of its proper divisors (6759619).

42266749 is an equidigital number, since it uses as much as digits as its factorization.

42266749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90195.

The product of its digits is 145152, while the sum is 40.

The square root of 42266749 is about 6501.2882569534. The cubic root of 42266749 is about 348.3370061857.

The spelling of 42266749 in words is "forty-two million, two hundred sixty-six thousand, seven hundred forty-nine".